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Expired
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BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
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Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
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Application filed by Brown Boveri und Cie AG Germany, BBC Brown Boveri France SAfiledCriticalBrown Boveri und Cie AG Germany
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Publication of GB190412097ApublicationCriticalpatent/GB190412097A/en
12,097. Akt.-Ges. Brown, Boveri, & Co. June 26, A.D. 1903, [date applied for under Patents Act, A.D. 1901]. Dynamos, regulating.-The regulating-apparatus used in a lighting-system to maintain a constant charging-current to the accumulator B, which is connected across the lighting-mains L, consists of a motor E, which operates a resistance switch H either in parallel to or, as shown, in series with the main generator field winding D', and is controlled by two opposing field coils N, S, one N in series with the motor armature and traversed by current from the accumulator B, and the other S traversed by the charging-current. When the dynamo speed and the charging-current vary, the motor armature rotates until, by the operation of the switch H, the excitation of the generator D has been so altered that the effects of the two coils N, S again neutralize each other. In the Specification as originally filed, it is stated that the coil N may be traversed by a current from any constant-potential source, and also that the coil S may be fed by a part of the charging-current.
GB190412097D1903-06-261904-05-27Improved Regulating Apparatus for Automatically Maintaining Electric Accumulator Charging Currents Constant.
ExpiredGB190412097A
(en)